Teens say they don't vape, they 'Juul.' That makes the activity hard to track Los Angeles Times How much do you know about vaping? OCDE Newsroom Mind Matters: How do Vaping Devices Work? Juul will stop selling most flavored e cigarettes in retail stores, source says Los Angeles Times Opinion) Rosie Cisneros: FDA should close loophole on disposable vaping devices Greeley Tribune